Combines empirical field data-process based equations
(natural runoff and rainfall simulator plots)
Zingg’s equation (1940)
Smith and Whit’s equation (1947)
AH-282 (1965)
“Undisturbed land” (1975)
AH-537 (1978)
Disturbed forestland (1980)
RUSLE1 (1992)
AH703 (1997)
OSM Manual (mined, reclaimed land, construction sites)
(1998)
RUSLE2 (2001)